2.4.0.812010 - Disclosure - Organization and Significant Accounting Policies (Policies)truefalsefalse1false falsefalseD2013Q2YTDhttp://www.sec.gov/CIK0001035688duration2013-01-01T00:00:002013-06-30T00:00:002false falsefalseD2012http://www.sec.gov/CIK0001035688duration2012-01-01T00:00:002012-12-31T00:00:001true 1us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstractus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Organization and Significant Accounting Policies2false 2us-gaap_PriorPeriodReclassificationAdjustmentDescriptionus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00<div style="font-size:10.0pt;font-family:Times New Roman;"> Reclassifications         Certain reclassifications have been made to prior-year amounts in order to conform to the current-year presentation. </div>falsefalsefalsenonnum:textBlockItemTypenaDisclosure of accounting policy for reclassifications that affects the comparability of the financial statements.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6359566&loc=d3e326-107755 false0Reclassifications3false 2us-gaap_ConsolidationPolicyTextBlockus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00<div style="font-size:10.0pt;font-family:Times New Roman;"> Principles of Consolidation         The consolidated financial statements include the accounts of the Company, its majority owned subsidiaries, limited liability companies and limited partnerships the Company and its subsidiaries control through ownership of general and limited partnership or membership interests. All significant intercompany balances and transactions are eliminated in consolidation. </div>falsefalsefalsenonnum:textBlockItemTypenaDisclosure of accounting policy regarding (1) the principles it follows in consolidating or combining the separate financial statements, including the principles followed in determining the inclusion or exclusion of subsidiaries or other entities in the consolidated or combined financial statements and (2) its treatment of interests (for example, common stock, a partnership interest or other means of exerting influence) in other entities, for example consolidation or use of the equity or cost methods of accounting. The accounting policy may also address the accounting treatment for intercompany accounts and transactions, noncontrolling interest, and the income statement treatment in consolidation for issuances of stock by a subsidiary.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Emerging Issues Task Force (EITF) -Number 97-2 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name FASB Interpretation (FIN) -Number 46R -Paragraph 4 -Subparagraph c -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph k -Article 1 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 18 -Paragraph 5, 6, 16-19 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 140 -Paragraph 46 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name FASB Interpretation (FIN) -Number 46R -Paragraph 4 -Subparagraph d -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02, 03 -Article 3A Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Emerging Issues Task Force (EITF) -Number 96-16 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 9: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 18 -Paragraph 20 -Subparagraph a(2) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 10: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name FASB Interpretation (FIN) -Number 46R -Paragraph 14, 15 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 11: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6367646&loc=d3e18780-107790 Reference 12: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -URI http://asc.fasb.org/subtopic&trid=2197480 Reference 13: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=18733093&loc=d3e5614-111684 Reference 14: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.3A-02) -URI http://asc.fasb.org/extlink&oid=6959686&loc=d3e355033-122828 Reference 15: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 2-6 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 16: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 40 -Section 45 -URI http://asc.fasb.org/section&trid=2197723 Reference 17: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -URI http://asc.fasb.org/subtopic&trid=2196966 Reference 18: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 325 -SubTopic 20 -URI http://asc.fasb.org/subtopic&trid=2197087 Reference 19: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 45 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=16385135&loc=d3e33801-111570 false0Principles of Consolidation4false 2us-gaap_UseOfEstimatesus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00<div style="font-size:10.0pt;font-family:Times New Roman;"> Use of Estimates         The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and reported amounts of revenues and expenses during the reporting period. Actual results could differ materially from those estimates. </div>falsefalsefalse2falsefalsefalse00<div style="font-size:10.0pt;font-family:Times New Roman;"> Use of Estimates         The preparation of financial statements in conformity with generally accepted accounting principles requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and reported amounts of revenues and expenses during the reporting period. Actual results could differ materially from those estimates. </div>falsefalsefalsenonnum:textBlockItemTypenaDisclosure of accounting policy for the use of estimates in the preparation of financial statements in conformity with generally accepted accounting principles.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=6927468&loc=d3e6143-108592 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=6927468&loc=d3e6132-108592 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6927468&loc=d3e6061-108592 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Statement of Position (SOP) -Number 94-6 -Paragraph 11, 14 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. false0Use of Estimates5false 2us-gaap_CashAndCashEquivalentsPolicyTextBlockus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00<div style="font-size:10.0pt;font-family:Times New Roman;"> Cash and Cash Equivalents         The Company considers all highly liquid investments with a maturity of three months or less when purchased to be cash equivalents. Cash equivalents are stated at cost which approximates market value. </div>falsefalsefalsenonnum:textBlockItemTypenaDisclosure of accounting policy for cash and cash equivalents, including the policy for determining which items are treated as cash equivalents. Other information that may be disclosed includes (1) the nature of any restrictions on the entity's use of its cash and cash equivalents, (2) whether the entity's cash and cash equivalents are insured or expose the entity to credit risk, (3) the classification of any negative balance accounts (overdrafts), and (4) the carrying basis of cash equivalents (for example, at cost) and whether the carrying amount of cash equivalents approximates fair value.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6367646&loc=d3e18780-107790 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Cash -URI http://asc.fasb.org/extlink&oid=6506951 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Cash Equivalents -URI http://asc.fasb.org/extlink&oid=6507016 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4273-108586 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 1 -Article 5 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 305 -SubTopic 10 -URI http://asc.fasb.org/subtopic&trid=2122427 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Financial Reporting Release (FRR) -Number 203 -Paragraph 02-03 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Technical Practice Aid (TPA) -Number 2110 -Paragraph 6 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 9: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 7, 8, 9, 10 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. false0Cash and Cash Equivalents6false 2us-gaap_ReceivablesPolicyTextBlockus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00<div style="font-size:10.0pt;font-family:Times New Roman;"> Accounts Receivable and Allowance for Doubtful Accounts         The Company reports accounts receivable at estimated net realizable values. Substantially all of the Company's accounts receivable are related to providing healthcare services to patients whose costs are primarily paid by federal and state governmental authorities, managed care health plans, commercial insurance companies and workers' compensation programs. Collection of these accounts receivable is the Company's primary source of cash and is critical to its operating performance. The Company's primary collection risks relate to non-governmental payors who insure these patients and deductibles, co-payments and amounts owed by the patient. Deductibles, co-payments and amounts owed by the patient are an immaterial portion of the Company's net accounts receivable balance and accounted for approximately 0.2% of the net accounts receivable balance before doubtful accounts at both December 31, 2011 and December 31, 2012. The Company's general policy is to verify insurance coverage prior to the date of admission for a patient admitted to the Company's hospitals or in the case of the Company's outpatient rehabilitation clinics, the Company verifies insurance coverage prior to their first therapy visit. The Company's estimate for the allowance for doubtful accounts is calculated by providing a reserve allowance based upon the age of an account balance. Generally the Company has reserved as uncollectible all governmental accounts over 365 days and non-governmental accounts over 180 days from discharge. This method is monitored based on historical cash collections experience. Collections are impacted by the effectiveness of the Company's collection efforts with non-governmental payors and regulatory or administrative disruptions with the fiscal intermediaries that pay the Company's governmental receivables.         The Company has historically collected substantially all of its third-party insured receivables (net of contractual allowances) which include receivables from governmental agencies. The Company reviews its overall reserve adequacy by monitoring historical cash collections as a percentage of net revenue less the provision for bad debts.         Uncollected accounts are written off the balance sheet when they are turned over to an outside collection agency, or when management determines that the balance is uncollectible, whichever occurs first. </div>falsefalsefalsenonnum:textBlockItemTypenaDisclosure of accounting policy for trade and other accounts receivable, and finance, loan and lease receivables, including those classified as held for investment and held for sale. This disclosure may include (1) the basis at which such receivables are carried in the entity's statements of financial position (2) how the level of the valuation allowance for receivables is determined (3) when impairments, charge-offs or recoveries are recognized for such receivables (4) the treatment of origination fees and costs, including the amortization method for net deferred fees or costs (5) the treatment of any premiums or discounts or unearned income (6) the entity's income recognition policies for such receivables, including those that are impaired, past due or placed on nonaccrual status and (7) the treatment of foreclosures or repossessions (8) the nature and amount of any guarantees to repurchase receivables.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6367646&loc=d3e18780-107790 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 114 -Paragraph 20 -Subparagraph b -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Emerging Issues Task Force (EITF) -Number 92-5 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -URI http://asc.fasb.org/subtopic&trid=2196772 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Statement of Position (SOP) -Number 01-6 -Paragraph 13 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 3-5 -Article 5 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 20 -URI http://asc.fasb.org/subtopic&trid=2196816 false0Accounts Receivable and Allowance for Doubtful Accounts7false 2us-gaap_PropertyPlantAndEquipmentPolicyTextBlockus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00<div style="font-size:10.0pt;font-family:Times New Roman;"> Property and Equipment         Property and equipment are stated at cost net of accumulated depreciation. Depreciation and amortization are computed using the straight-line method over the estimated useful lives of the assets or the term of the lease, as appropriate. The general range of useful lives is as follows: <div style="POSITION: relative; PADDING-BOTTOM: 0pt; PADDING-LEFT: 0pt; WIDTH: 70%; PADDING-RIGHT: 0pt; MARGIN-LEFT: 15%; PADDING-TOP: 0pt;">   <div align="center"> <table border="0" cellspacing="0" cellpadding="0" width="100%" style="text-align:left;"> <tr style="padding:0;"> <td style="FONT-FAMILY: times;" align="left"></td> <td style="FONT-FAMILY: times;" width="12"></td> <td style="FONT-FAMILY: times;" width="68" align="right"></td></tr> <tr style="padding:0;" valign="bottom" bgcolor="#CCEEFF"> <td style="FONT-FAMILY: times;"> Leasehold improvements</td> <td style="FONT-FAMILY: times;"> </td> <td style="FONT-FAMILY: times;" align="right">5 years</td></tr> <tr style="padding:0;" valign="bottom" bgcolor="white"> <td style="FONT-FAMILY: times;"> Furniture and equipment</td> <td style="FONT-FAMILY: times;"> </td> <td style="FONT-FAMILY: times;" align="right">3 - 20 years</td></tr> <tr style="padding:0;" valign="bottom" bgcolor="#CCEEFF"> <td style="FONT-FAMILY: times;"> Buildings</td> <td style="FONT-FAMILY: times;"> </td> <td style="FONT-FAMILY: times;" align="right">40 years</td></tr> <tr style="padding:0;" valign="bottom" bgcolor="white"> <td style="FONT-FAMILY: times;"> Building Improvements</td> <td style="FONT-FAMILY: times;"> </td> <td style="FONT-FAMILY: times;" align="right">5 - 25 years</td></tr> <tr style="padding:0;" valign="bottom" bgcolor="#CCEEFF"> <td style="FONT-FAMILY: times;"> Land Improvements</td> <td style="FONT-FAMILY: times;"> </td> <td style="FONT-FAMILY: times;" align="right">2 - 25 years</td></tr></table></div> </div>         The Company reviews the realizability of long-lived assets whenever events or circumstances occur which indicate recorded costs may not be recoverable. Gains or losses related to the retirement or disposal of property and equipment are reported as a component of income from operations. </div>falsefalsefalsenonnum:textBlockItemTypenaDisclosure of accounting policy for property, plant and equipment which may include the basis of such assets, depreciation methods used and estimated useful lives, the entity's capitalization policy, including its accounting treatment for costs incurred for repairs and maintenance activities, whether such asset balances include capitalized interest and the method by which such is calculated, how disposals of such assets are accounted for and how impairment of such assets is assessed and recognized.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6367646&loc=d3e18780-107790 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -URI http://asc.fasb.org/subtopic&trid=2155824 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 22 -Paragraph 12, 13 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 43 -Section C -Paragraph 5 -Chapter 9 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 12 -Paragraph 5 -Subparagraph d -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 144 -Paragraph 7 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.13(a)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 13 -Subparagraph a -Article 5 Reference 9: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 34 -Paragraph 8, 9 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. false0Property and Equipment8false 2us-gaap_ConcentrationRiskCreditRiskus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00<div style="font-size:10.0pt;font-family:Times New Roman;"> Concentration of Credit Risk         Financial instruments that potentially subject the Company to concentration of credit risk consist primarily of cash balances and trade receivables. The Company invests its excess cash with large financial institutions. The Company grants unsecured credit to its patients, most of who reside in the service area of the Company's facilities and are insured under third-party payor agreements. Because of the geographic diversity of the Company's facilities and non-governmental third-party payors, Medicare represents the Company's only significant concentration of credit risk. </div>falsefalsefalsenonnum:textBlockItemTypenaDisclosure of accounting policy for credit risk.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 55 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6875567&loc=d3e14537-108613 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name FASB Staff Position (FSP) -Number SOP94-6-1 -Paragraph 7, 11 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 107 -Paragraph 15A -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 113 -Paragraph 28 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 825 -Section 55 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6487554&loc=d3e32600-158583 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=7491637&loc=d3e13531-108611 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 21 -URI http://asc.fasb.org/extlink&oid=7491637&loc=d3e13537-108611 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 825 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6480020&loc=d3e61082-112788 Reference 9: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 825 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6480020&loc=d3e61044-112788 Reference 10: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Statement of Position (SOP) -Number 01-6 -Paragraph 14 -Subparagraph m -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 11: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 55 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6875567&loc=d3e14489-108613 false0Concentration of Credit Risk9false 2us-gaap_IncomeTaxPolicyTextBlockus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00<div style="font-size:10.0pt;font-family:Times New Roman;"> Income Taxes         Deferred tax assets and liabilities are recognized using enacted tax rates for the effect of temporary differences between the book and tax bases of recorded assets and liabilities. Deferred tax assets are reduced by a valuation allowance if it is more likely than not that some portion or all of the deferred tax asset will not be realized. As part of the process of preparing its consolidated financial statements, the Company estimates income taxes based on its actual current tax exposure together with assessing temporary differences resulting from differing treatment of items for book and tax purposes. The Company also recognizes as deferred tax assets the future tax benefits from net operating loss carry forwards. The Company evaluates the realizability of these deferred tax assets by assessing their valuation allowances and by adjusting the amount of such allowances, if necessary. Among the factors used to assess the likelihood of realization are projections of future taxable income streams, the expected timing of the reversals of existing temporary differences, and the impact of tax planning strategies that could be implemented to avoid the potential loss of future tax benefits.         Reserves for uncertain tax positions are established for exposure items related to various federal and state tax matters. Income tax reserves are recorded when an exposure is identified and when, in the opinion of management, it is more likely than not that a tax position will not be sustained and the amount of the liability can be estimated. </div>falsefalsefalsenonnum:textBlockItemTypenaDisclosure of accounting policy for income taxes, which may include its accounting policies for recognizing and measuring deferred tax assets and liabilities and related valuation allowances, recognizing investment tax credits, operating loss carryforwards, tax credit carryforwards, and other carryforwards, methodologies for determining its effective income tax rate and the characterization of interest and penalties in the financial statements.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 4 -Paragraph 11 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name FASB Interpretation (FIN) -Number 48 -Paragraph 20 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6367646&loc=d3e18780-107790 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 45 -Paragraph 25 -URI http://asc.fasb.org/extlink&oid=21917399&loc=d3e32247-109318 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 19 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32840-109319 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 30 -URI http://asc.fasb.org/subtopic&trid=2144749 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 954 -SubTopic 740 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6491622&loc=d3e9504-115650 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -URI http://asc.fasb.org/subtopic&trid=2144681 Reference 9: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 17 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32809-109319 Reference 10: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 45 -Paragraph 28 -URI http://asc.fasb.org/extlink&oid=21917399&loc=d3e32280-109318 Reference 11: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 109 -Paragraph 6-34, 43, 47, 49 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. false0Income Taxes10false 2us-gaap_GoodwillAndIntangibleAssetsPolicyTextBlockus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00<div style="font-size:10.0pt;font-family:Times New Roman;"> Intangible Assets         Goodwill and certain other indefinite-lived intangible assets are not amortized, but instead are subject to periodic impairment evaluations. In performing the quantitative periodic impairment tests, the fair value of the reporting unit is compared to its carrying value, including goodwill and other intangible assets. If the carrying value exceeds the fair value, an impairment condition exists, which results in an impairment loss equal to the excess carrying value.         To determine the fair value of its reporting units, the Company uses a discounted cash flow approach. Included in this analysis are assumptions regarding revenue growth rate, future Adjusted EBITDA margin estimates, future general and administrative expense rates and the industry's weighted average cost of capital and industry specific market comparable Adjusted EBITDA multiples. The Company also must estimate residual values at the end of the forecast period and future capital expenditure requirements. Each of these assumptions requires the Company to use its knowledge of (1) its industry, (2) its recent transactions, and (3) reasonable performance expectations for its operations. If any one of the above assumptions changes or fails to materialize, the resulting decline in the Company's estimated fair value could result in a material impairment charge to the goodwill associated with any one of the reporting units.         Impairment tests are required to be conducted at least annually, or when events or conditions occur that might suggest a possible impairment. These events or conditions include, but are not limited to, a significant adverse change in the business environment, regulatory environment or legal factors; a current period operating or cash flow loss combined with a history of such losses or a projection of continuing losses; or a sale or disposition of a significant portion of a reporting unit. The occurrence of one of these events or conditions could significantly impact an impairment assessment, necessitating an impairment charge. For purposes of goodwill impairment assessment, the Company has defined its reporting units as specialty hospitals, outpatient rehabilitation clinics and contract therapy with goodwill having been allocated among reporting units based on the relative fair value of those divisions when the Merger occurred in 2005 and based on subsequent acquisitions and dispositions. The Company's most recent impairment assessment was completed during the fourth quarter of 2012 utilizing financial information as of October 1, 2012 and indicated that there was no impairment with respect to goodwill or other recorded intangible assets.         Identifiable assets and liabilities acquired in connection with business combinations accounted for under the purchase method are recorded at their respective fair values. Deferred income taxes have been recorded to the extent of differences between the fair value and the tax basis of the assets acquired and liabilities assumed. Company management has allocated the intangible assets between identifiable intangibles and goodwill. At December 31, 2012, intangible assets other than goodwill consist of the values assigned to trademarks, certificates of need and accreditations. Management believes that the estimated useful lives established are reasonable based on the economic factors applicable to each of the intangible assets.         The approximate useful life of each class of intangible assets is as follows: <div style="POSITION: relative; PADDING-BOTTOM: 0pt; PADDING-LEFT: 0pt; WIDTH: 70%; PADDING-RIGHT: 0pt; MARGIN-LEFT: 15%; PADDING-TOP: 0pt;">   <div align="center"> <table border="0" cellspacing="0" cellpadding="0" width="100%" style="text-align:left;"> <tr style="padding:0;"> <td style="FONT-FAMILY: times;" width="39%" align="left"></td> <td style="FONT-FAMILY: times;" width="12"></td> <td style="FONT-FAMILY: times;" width="39%" align="left"></td></tr> <tr style="padding:0;" valign="top" bgcolor="#CCEEFF"> <td style="FONT-FAMILY: times;">Trademarks</td> <td style="FONT-FAMILY: times;"> </td> <td style="FONT-FAMILY: times;">Indefinite</td></tr> <tr style="padding:0;" valign="top" bgcolor="white"> <td style="FONT-FAMILY: times;">Certificates of need</td> <td style="FONT-FAMILY: times;"> </td> <td style="FONT-FAMILY: times;">Indefinite</td></tr> <tr style="padding:0;" valign="top" bgcolor="#CCEEFF"> <td style="FONT-FAMILY: times;">Accreditations</td> <td style="FONT-FAMILY: times;"> </td> <td style="FONT-FAMILY: times;">Indefinite</td></tr></table></div> </div>         The Company reviews the realizability of intangible assets whenever events or circumstances occur which indicate recorded amounts may not be recoverable.         If the expected future cash flows (undiscounted) are less than the carrying amount of such assets, the Company recognizes an impairment loss for the difference between the carrying amount of the assets and their estimated fair value. </div>falsefalsefalsenonnum:textBlockItemTypenaDisclosure of accounting policy for goodwill and intangible assets. This accounting policy also may address how an entity assesses and measures impairment of goodwill and intangible assets.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6367646&loc=d3e18780-107790 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -URI http://asc.fasb.org/subtopic&trid=2144471 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 144 -Paragraph 7-18, 22 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -URI http://asc.fasb.org/subtopic&trid=2144439 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 142 -Paragraph 4, 11-23, 26, 34 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. false0Intangible Assets11false 2us-gaap_ContractualAdjustmentsAndThirdPartySettlementsPolicyPolicyTextBlockus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00<div style="font-size:10.0pt;font-family:Times New Roman;"> Due to Third-Party Payors         Due to third-party payors represents the difference between amounts received under interim payment plans from Medicare and Medicaid for services rendered and amounts estimated to be reimbursed by those third-party payors upon settlement of cost reports. </div>falsefalsefalsenonnum:textBlockItemTypenaDisclosure of accounting policy for contractual adjustments and third-party settlements.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 954 -SubTopic 405 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6491204&loc=d3e4869-115612 false0Due to Third-Party Payors12false 2sem_InsuranceRiskProgramsPolicyTextBlocksem_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00<div style="font-size:10.0pt;font-family:Times New Roman;"> Insurance Risk Programs         Under a number of the Company's insurance programs, which include the Company's employee health insurance program, its workers' compensation, professional liability insurance programs and certain components under its property and casualty insurance program, the Company is liable for a portion of its losses. In these situations the Company accrues for its losses under an occurrence-based approach whereby the Company estimates the losses that will be incurred in a respective accounting period and accrues that estimated liability. Where the Company has substantial exposure, actuarial methods are utilized in estimating the losses. In cases where the Company has minimal exposure, losses are estimated by analyzing historical trends. These programs are monitored quarterly and estimates are revised as necessary to take into account additional information. Provisions for losses for professional liability risks retained by the Company at December 31, 2011 and 2012 have been discounted at 3%. At December 31, 2011 and 2012 respectively, the Company had recorded a liability of $85.7 million and $92.5 million related to these programs. If the Company did not discount the provisions for losses for professional liability risks, the aggregate liability for all of the insurance risk programs would be approximately $88.6 million and $95.6 million at December 31, 2011 and 2012, respectively. </div>falsefalsefalsenonnum:textBlockItemTypenaDisclosure of accounting policy for the insurance programs of the entity.No definition available.false0Insurance Risk Programs13false 2us-gaap_EquityMethodInvestmentsPolicyus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00<div style="font-size:10.0pt;font-family:Times New Roman;"> Equity Method Investments         Investments in equity method investees are accounted for using the equity method based upon the level of ownership and/or the Company's ability to exercise significant influence over the operating and financial policies of the investee. Investments of this nature are recorded at original cost and adjusted periodically to recognize the Company's proportionate share of the investees' net income or losses after the date of investment. When net losses from an investment accounted for under the equity method exceeds its carrying amount, the investment balance is reduced to zero. The Company resumes accounting for the investment under the equity method if the entity subsequently reports net income and the Company's share of that net income exceeds the share of the net losses not recognized during the period the equity method was suspended. Investments are written down only when there is clear evidence that a decline in value that is other than temporary has occurred. The Company evaluates its investments in companies accounted for using the equity method for impairment when there is evidence or indicators that a decrease in value may be other than temporary. </div>falsefalsefalsenonnum:textBlockItemTypenaDisclosure of accounting policy for the equity method of accounting for investments in common stock or other interests including unconsolidated subsidiaries, corporate joint ventures, noncontrolling interests in real estate ventures, limited partnerships, and limited liability companies. The accounting policy may include information such as: (1) initially recording an investment in the stock of an investee at cost; (2) adjusting the carrying amount of the investment to recognize the investor's share of the earnings or losses of the investee after the date of acquisition; and (3) adjustments to reflect the investor's share of changes in the investee's capital (dividends). This disclosure may also include a detailed description of the policy for determining the amount of equity method losses recognized after an investment has been reduced to zero as a result of previous losses, reasons for not using the equity method when the investor company owns 20 percent or more of the voting stock of the investee's company (including identification of the significant investee), reasons for using the equity method when the ownership percentage is less than 20 percent, and discussion of recognition of equity method losses when an investor's total investment in an investee includes, in addition to an investment in common stock, other investments such as preferred stock and loans to the investee. An entity also may describe how such investments are assessed for impairment.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Emerging Issues Task Force (EITF) -Number 02-14 -Paragraph 6 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Emerging Issues Task Force (EITF) -Number D-46 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Emerging Issues Task Force (EITF) -Number 03-16 -Paragraph 5 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Emerging Issues Task Force (EITF) -Number 99-10 -Paragraph 6, 7 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6367646&loc=d3e18780-107790 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.12) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -URI http://asc.fasb.org/subtopic&trid=2196966 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 12 -Article 5 Reference 9: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 28 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=6957238&loc=d3e14064-108612 Reference 10: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 159 -Paragraph 18 -Subparagraph f -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 11: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=6382943&loc=d3e33918-111571 Reference 12: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 18 -Paragraph 5, 6, 16-20 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 13: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Emerging Issues Task Force (EITF) -Number 98-13 -Paragraph 5, 15 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. false0Equity Method Investments14false 2sem_NoncontrollingInterestsPolicyTextBlocksem_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00<div style="font-size:10.0pt;font-family:Times New Roman;"> Non-Controlling Interests         The interests held by other parties in subsidiaries, limited liability companies and limited partnerships owned and controlled by the Company are reported as either redeemable non-controlling interests outside of stockholders' equity or as non-controlling interests in the stockholders' equity section of the consolidated balance sheets. The minority ownership interests that are reflected as redeemable non-controlling interests on our consolidated balance sheets consist of those outside owners that have certain "put rights," that are currently exercisable, and that, if exercised, require us to purchase the minority member's interest. Those redeemable non-controlling interests that are currently redeemable or considered probable of becoming redeemable have been adjusted to their approximate redemption values. As of December 31, 2011 and December 31, 2012, we believe the redemption values of the non-controlling ownership interests approximates the fair value of those interests classified as redeemable non-controlling interests. The non-controlling interests' balances reported in the stockholders' equity section of our consolidated balance sheets were $26.7 million and $28.4 million as of December 31, 2011 and December 31, 2012, respectively.         Net income attributable to non-controlling interests was $4.7 million, $4.9 million and $5.7 million for the years ended December 31, 2010, December 31, 2011, and December 31, 2012, respectively. Non-controlling interests reported in the consolidated statement of operations and comprehensive income reflect the respective interests in the income or loss of the subsidiaries, attributable to the other parties, the effect of which is removed from the Company's consolidated statement of operations and comprehensive income.         During 2012, the amounts related to redeemable non-controlling interests have been reclassified on the consolidated balance sheets at December 31, 2011 and the consolidated statement of changes in equity and income for the years ended December 31, 2010 and December 31, 2011 from non-controlling interests to redeemable non-controlling interests. The redeemable non-controlling interests' balances reported on our consolidated balance sheets were $9.0 million and $10.8 million as of December 31, 2011 and December 31, 2012, respectively. </div>falsefalsefalsenonnum:textBlockItemTypenaDisclosure of accounting policy for non-controlling interests.No definition available.false0Non-Controlling Interests15false 2us-gaap_RevenueRecognitionPolicyTextBlockus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00<div style="font-size:10.0pt;font-family:Times New Roman;"> Revenue Recognition         Net operating revenues consists primarily of patient service revenues and revenues generated from therapy services provided to healthcare institutions under contractual arrangements and are recognized as services are rendered.         Patient service revenue is reported net of provisions for contractual allowances from third-party payors and patients. The Company has agreements with third-party payors that provide for payments to the Company at amounts different from its established billing rates. The differences between the estimated program reimbursement rates and the standard billing rates are accounted for as contractual adjustments, which are deducted from gross revenues to arrive at net operating revenues. Payment arrangements include prospectively determined rates per discharge, reimbursed costs, discounted charges, per diem and per visit payments. Retroactive adjustments are accrued on an estimated basis in the period the related services are rendered and adjusted in future periods as final settlements are determined. Accounts receivable resulting from such payment arrangements are recorded net of contractual allowances.         A significant portion of the Company's net operating revenues are generated directly from the Medicare program. Net operating revenues generated directly from the Medicare program represented approximately 47%, 48% and 47% of the Company's net operating revenues for the years ended December 31, 2010, 2011 and 2012, respectively. Approximately 32% and 29% of the Company's accounts receivable (after allowances for contractual adjustments but before doubtful accounts) at December 31, 2011 and 2012, respectively, are from this payor source. As a provider of services to the Medicare program, the Company is subject to extensive regulations. The inability of any of the Company's specialty hospitals or clinics to comply with regulations can result in significant changes in that specialty hospital's or clinic's net operating revenues generated from the Medicare program.         Revenues generated under contractual arrangements are comprised primarily of billings for services rendered to nursing homes, hospitals, schools and other third parties. </div>falsefalsefalsenonnum:textBlockItemTypenaDisclosure of accounting policy for revenue recognition. If the entity has different policies for different types of revenue transactions, the policy for each material type of transaction is generally disclosed. If a sales transaction has multiple element arrangements (for example, delivery of multiple products, services or the rights to use assets) the disclosure may indicate the accounting policy for each unit of accounting as well as how units of accounting are determined and valued. The disclosure may encompass important judgment as to appropriateness of principles related to recognition of revenue. The disclosure also may indicate the entity's treatment of any unearned or deferred revenue that arises from the transaction.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6367646&loc=d3e18780-107790 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6367646&loc=d3e18726-107790 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 13 -Section B -Paragraph Question 1 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 605 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 13.B.Q1) -URI http://asc.fasb.org/extlink&oid=6600647&loc=d3e214044-122780 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 22 -Paragraph 8, 12, 13 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6367646&loc=d3e18823-107790 false0Revenue Recognition16false 2us-gaap_FairValueMeasurementPolicyPolicyTextBlockus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00<div style="font-size:10.0pt;font-family:Times New Roman;"> Fair Value Measurements         The Company measures interest rate swap agreements at fair value at each balance sheet date. The Company determines the fair value of interest rate swap agreements based on financial models that consider current and future market interest rates and adjustments for non-performance risk. The Company considers those inputs utilized in the valuation process to be Level 2 in the fair value hierarchy. Level 2 in the fair value hierarchy is defined as inputs other than quoted prices that are observable for the asset or liability, either directly or indirectly. These include quoted prices for similar assets or liabilities in active markets and quoted prices for identical or similar assets or liabilities in markets that are not active. The Company's last interest rate swap agreement matured on November 22, 2010. </div>falsefalsefalsenonnum:textBlockItemTypenaDisclosure of accounting policy for fair value measurements, which may include, but is not limited to, how an entity that manages a group of financial assets and liabilities on the basis of its net exposure measures the fair value of those assets and liabilities.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6367646&loc=d3e18780-107790 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 35 -Paragraph 18G -URI http://asc.fasb.org/extlink&oid=15229074&loc=SL7494712-110257 false0Fair Value Measurements17false 2us-gaap_DerivativesPolicyTextBlockus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00<div style="font-size:10.0pt;font-family:Times New Roman;"> Financial Instruments and Hedging         The Company has in the past entered into interest rate swap agreements to manage interest rate risk on a portion of its long-term borrowings. Interest rate swap agreements were limited in use and not entered into for speculative purposes. All interest rate swap agreements were recognized at fair value on the balance sheet. The effective portion of gains or losses on interest rate swap agreements designated as hedges, were initially deferred in stockholders' equity as a component of other comprehensive income. These deferred gains or losses were subsequently reclassified into earnings as an adjustment to interest expense over the same period in which the related interest payments being hedged are recognized in expense. The ineffective portion of changes in fair value of the interest rate swap agreements were immediately recognized in the other income and expense section of the consolidated statement of operations. </div>falsefalsefalsenonnum:textBlockItemTypenaDisclosure of accounting policy for its derivative instruments and hedging activities.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph n -Article 4 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6367646&loc=d3e18780-107790 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=7476318&loc=d3e41620-113959 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1A -URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5579245-113959 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5579240-113959 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=7476318&loc=d3e41638-113959 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(n)) -URI http://asc.fasb.org/extlink&oid=6881521&loc=d3e23780-122690 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 133 -Paragraph 44 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 9: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=7476318&loc=d3e41675-113959 Reference 10: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name FASB Interpretation (FIN) -Number 39 -Paragraph 10 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. false0Financial Instruments and Hedging18false 2us-gaap_ShareBasedCompensationOptionAndIncentivePlansPolicyus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00<div style="font-size:10.0pt;font-family:Times New Roman;"> Stock Based Compensation         The Company measures the compensation costs of share-based compensation arrangements based on the grant-date fair value and recognizes the costs in the financial statements over the period during which employees are required to provide services. Share-based compensation arrangements comprise both stock options and restricted share plans. Employee stock options are valued using the Black-Scholes option valuation method which uses assumptions that relate to the expected volatility of the Company's common stock, the expected dividend yield of the Company's stock, the expected life of the options and the risk free interest rate. Such compensation amounts, if any, are amortized over the respective vesting periods or periods of service of the option grant. The Company values restricted stock grants by using the public market price of its stock on the date of grant. </div>falsefalsefalsenonnum:textBlockItemTypenaDisclosure of accounting policy for stock option and stock incentive plans. This disclosure may include (1) the types of stock option or incentive plans sponsored by the entity (2) the groups that participate in (or are covered by) each plan (3) significant plan provisions and (4) how stock compensation is measured, and the methodologies and significant assumptions used to determine that measurement.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6367646&loc=d3e18780-107790 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph A240 -Subparagraph a -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b),(f) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -URI http://asc.fasb.org/subtopic&trid=2228939 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Emerging Issues Task Force (EITF) -Number 06-11 -Paragraph 7 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. false0Stock Based Compensation19false 2us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlockus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00<div style="font-size:10.0pt;font-family:Times New Roman;"> Recent Accounting Pronouncements         In July 2012, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") 2012-02, "Intangibles—Goodwill and Other (Topic 350): Testing Indefinite-Lived Intangible Assets for Impairment," ("Update 2012-02"). In accordance with Update 2012-02, an entity has the option to first assess qualitative factors to determine whether it is more likely than not that the fair value of an indefinite-lived intangible asset is less than its carrying value. If the entity determines that it is more likely than not that the fair value of the indefinite-lived intangible asset is less than the carrying value, the entity will be required to perform the quantitative impairment test. Update 2012-02 is effective for annual and interim impairment tests performed for fiscal years beginning after September 15, 2012. However, early adoption is permitted. Update 2012-02 will not have an impact on the Company's consolidated financial statements.         In June 2011, the FASB issued ASU 2011-05, "Comprehensive Income (Topic 220)—Presentation of Comprehensive Income" ("Update 2011-05") that improves the comparability, consistency and transparency of financial reporting and increases the prominence of items reported in other comprehensive income by eliminating the option to present components of other comprehensive income as part of the statement of changes in stockholders' equity. Update 2011-05 requires that all non-owner changes in stockholders' equity be presented either in a single continuous statement of comprehensive income or in two separate but consecutive statements. Under either method, adjustments must be displayed for items that are reclassified from other comprehensive income ("OCI") to net income, in both net income and OCI. Update 2011-05 does not change the current option for presenting components of OCI gross or net of the effect of income taxes, provided that such tax effects are presented in the statement in which OCI is presented or disclosed in the notes to the financial statements. Additionally, Update 2011-05 does not affect the calculation or reporting of earnings per share. Update 2011-05 was effective for fiscal years, and interim periods within those years, beginning after December 15, 2011 and is to be applied retrospectively. With the adoption of Update 2011-05, the Company opted to change its presentation of its components of other comprehensive income to a single continuous statement of operations and other comprehensive income. </div>falsefalsefalsenonnum:textBlockItemTypenaDisclosure of the adoption of new accounting pronouncements that may impact the entity's financial reporting.No definition available.false0Recent Accounting PronouncementsfalseOrganization and Significant Accounting Policies (Policies)UnKnownUnKnownUnKnownUnKnowntruefalsefalseSheethttp://www.selectmedicalcorp.com/role/DisclosureOrganizationAndSignificantAccountingPoliciesPolicies219